【多选题】依据花卉对于土壤酸度的要求,将花卉分为 : ( )。
【简答题】听下面一段材料,回答第1-4题。 1. What is the most important part of dog-care? A. Proper feeding. B. Active exercise. C. Clean. 2. How long should food be left before a dog? A. Not more than twenty minutes. B. Not ...
【简答题】Read the conversation. Choose the proper sentences from A to E to complete the conversation. A. What ’ s your recommendation B. What is the origin of the banquet ’ s name C. like flowing water D. I ’ ...
【简答题】吐司面包菌落总数测定的培养操作时,平板要( ),需要温度为( )°C,培养时间为( )h。
【简答题】缺铁性贫血是由于人体内骨髓、肝、脾及其他组织内贮存铁缺乏,导致____合成减少而形成的一种贫血性疾病。